Biology

The correct answer is: B.Small molecules that are building blocks for macromolecules

Explanation:

Monomers are the small, individual molecules that serve as the building blocks for macromolecules (large molecules such as polymers). These monomers bond together to form larger structures like proteins, nucleic acids, and polysaccharides.

1.Example: In a protein, amino acids are the monomers that link together to form the polymer (protein).

2.Example: In a car...